clit vs erogenous zone

clit

noun
  • A penis likened to a clitoris, especially in terms of smallness. 

  • A term of abuse. 

verb
  • To stimulate the clitoris. 

erogenous zone

noun
  • A part of the human body that is particularly responsive to sexual stimulation. 

How often have the words clit and erogenous zone occurred in a corpus of books? (source: Google Ngram Viewer )